Introduction Dissolved Air Flotation (DAF) is frequently the unit process of choice when dealing with low-density solids, algae, or fats, oils, and grease (FOG)—contaminants that defy gravity settling. However, a surprising number of DAF installations fail to meet performance guarantees not because the tank is the wrong size, but because the whitewater system is improperly […]
Dissolved air flotation (DAF) is a water treatment process that clarifies wastewater by the removal of suspended matter such as oil, grease, or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank or basin. The released air […]